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  • Title: Supramolecular nano networks formed by molecular-recognition-directed self-assembly of ditopic calix[5]arene and dumbbell [60]fullerene.
    Author: Haino T, Matsumoto Y, Fukazawa Y.
    Journal: J Am Chem Soc; 2005 Jun 29; 127(25):8936-7. PubMed ID: 15969555.
    Abstract:
    Dumbbell fullerene 1 and ditopic bisdouble-calix[5]arene 2 were synthesized. Their iterative host-guest complexations create the supramolecular nano network. Scanning electron microscopy revealed the formation of the branched fiber, possessing a length of more than 100 mum and widths of 250-500 nm on a glass plate. More detailed information was given by atomic force microscopy. The formed fibers on a mica plate have widths of 60-90 nm and heights of 1.2-1.9 nm. The nanosize assemblies are probably composed of a bundle of 40-60 polymer chains created by entangling the alkyl side chains with van der Waals interaction.
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